Sewer SafetyOur trained employees have the safety equipment necessary to check the manholes to make sure that there are no dangerous gases present. Read More >>

Sewer RepairsUSD maintains all public sanitary sewer mains within Fremont, Newark, and Union City. This includes over 811 miles of pipelines which are generally located within public streets or easements dedicated for District use.Read More >>

Pollution PreventionIn order to maintain and improve the quality of water in San Francisco Bay, Union Sanitary District (USD) has instituted a Pollution Prevention (P2) Program to reduce the quantity of pollutants discharged from our wastewater treatment plant into the San Francisco Bay. Read More >>

USD Construction ProjectsUnion Sanitary District has plans and specs for advertised Capital Improvement Projects available for viewing in pdf format. The digital format does not supercede the requirements for bidders to purchase a hard copy of the plans and specs. Read More >>

Green Business ProgramAs a business, is your bottom line green? Do you know how you can receive free business promotions, increase operating efficiency and profits, and learn how to reduce waste and utility costs? Read More >>

Pretreatment ProgramThe objectives of USD's Industrial Pretreatment Program are to protect the District's wastewater collection and treatment facilities, the safety of our workers and the community, and water quality in the San Francisco Bay by limiting the discharge of toxic or potentially harmful substances to the sewer system.Read More >>